Fabrication method for combined cylindrical discharge high-power gas laser and combined cylindrical discharge high-power gas laser device

A combined laser technology, applied in the field of optics and optical engineering, can solve the problems of large consumption of liquid nitrogen and high-purity gas, complex device structure, etc.

Inactive Publication Date: 2013-03-20
XIHUA UNIV
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Problems solved by technology

The RF-excited diffusion-cooled kilowatt carbon monoxide slab waveguide laser reported by Xin Jianguo and others in China obtained a 1020-watt carbon monoxide laser with liquid nitrogen cooling. The disadvantage is that the output is usually a low-order transverse mode and the device structure is complicated. high gas consumption

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  • Fabrication method for combined cylindrical discharge high-power gas laser and combined cylindrical discharge high-power gas laser device
  • Fabrication method for combined cylindrical discharge high-power gas laser and combined cylindrical discharge high-power gas laser device

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Embodiment Construction

[0007] Example 1, refer to attached figure 1 , the thickness of the inner and outer cylinders (that is, the width of two concentric rings on the section of the cylinder) is 1cm, the radius of the outer cylinder (that is, the distance from the core of the outer cylinder to the symmetry axis of the system) is 12cm, and the radius of the inner cylinder is (that is, the distance from the inner cylinder core to the system symmetry axis) is 10cm, the distance between the two cylinder cores is 2cm, the length of the outer cylinder is 1m, and the length of the inner cylinder is 1.06m. axis. The radius of curvature of the toric mirror is 5m, the axicon mirror (2) is nested in the toric mirror, the two mirrors form a combined mirror and placed 5cm to the left of the left end of the inner cylinder, and the output mirror is nested in the axicon mirror (3) Inside, the two mirrors constitute another combined mirror and are placed 5cm to the right of the right end of the inner cylinder....

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Abstract

The invention relates to a fabrication method for a combined cylindrical discharge high-power gas laser and a combined cylindrical discharge high-power gas laser device, and belongs to the field of optics and optical engineering. The method is characterized in that an inner cylinder and an outer cylinder that are coaxial are placed on a symmetric axis of the device in an embedded manner, and a radio-frequency power supply discharges to excite the combined cylinder to obtain high-power hollow annular carbon dioxide laser beams or carbon dioxide laser beams. A four-mirror stable resonator is adopted, so that high-power laser output can be achieved under a condition of a short laser cavity. The higher-power hollow annular carbon dioxide laser or the carbon dioxide laser can be used for laser processing, material processing and other aspects, and the lower-power hollow annular carbon dioxide laser or the carbon dioxide laser can be used for laser cosmetology, laser surface processing and the like. The hollow annular laser beams can be focused into a hollow beam with a smaller dark space, and can be used for optical spanners, optical tweezers, optical conduits and the like. The device has the advantages that the device is compact in structure and high in output power, and the beams are convenient to transform.

Description

technical field [0001] The present invention relates to the field of optics and optical engineering, and mainly uses radio frequency power supply discharge to excite a combined cylinder composed of a coaxial inner cylinder and an outer cylinder to obtain a high-power hollow annular carbon dioxide laser beam or carbon monoxide laser beam. Device and construction method. High-power carbon dioxide lasers are used in laser industrial processing due to their advantages of high power and high beam quality, and are one of the most important devices in laser processing. The output wavelength of the high-power carbon monoxide laser is 5 microns, which is half of the wavelength of the carbon dioxide laser, so a converging beam with a smaller diameter can be obtained. Since the metal material has a strong absorption of the laser at this wavelength, it can increase the metal processing speed and has a higher processing efficiency. At present, optical fiber can be used to transmit this k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/08H01S3/081H01S3/223
Inventor 徐勇根樊群超王时建
Owner XIHUA UNIV
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